strutting more times in a single bout than other males and continuing to strut for females—whether they showed interest or not. —The American Naturalist Sage grouse lack gizzard stones ...

Sage-grouse numbers can vary according to weather events, but the 2019 count of just 429 strutting males rangewide is a stark deviation from the 1,129 birds counted in 2015. “This number is well below ...

I’ve come to appreciate ruffed grouse more than any other bird, and its “shapeshifter” ability is a prime reason why. A male ruffed grouse is strutting in a declaration of self-importance.